Geography
Geographic Information Systems
FreeGIS Project http://www.freegis.org/
The project is an online community dedicated to the use and development of free GIS applications. Visit the site to learn about software for over 300 GIS applications, and get support in using it.
Geographic Information System, United States Geological Service
http://egsc.usgs.gov/isb/pubs/gis_poster/
An introduction to GIS and its applications. The pages can be used to construct a poster.
GIS for the Nation
http://gos2.geodata.gov/wps/portal/gos/kcxml/04_Sj9SPykssy0xPLMnMz0vMAfIjzeO94w0dg8L0o3JS0xOTK_VD8_TDchMrMnMzq1JT4CoswwKQVPgClWTmQZVE6EeZAZWYWAaAzAcx_Sz1I9GFLDCEwtyhQs6-cCEniFCYC0zExNILQ6OJpQ9UzNFA39cjPzdV31s_QL8gJ6uywjTHDQQsHB0VAYlKH9E!/delta/base64xml/L3dJdyEvd0ZNQUVzQUsvNElVRS82X0tfQTg1
A federal project to develop an interoperable system of GIS, using standards and best practices.
GISuser.com http://www.gisuser.com/
This website has everything for the GIS user: latest news and developments, a blog for the GIS community, links to datasets, information about GIS educational programs, job postings, directory of geo-related companies, and more.